Hey,

Advantages of educational psychology :

• Understanding individual differences
• Creation of the conducive learning climate in the classroom
• Selection of learning strategies and methods.
• Provide guidance to students.
• Evaluate learning outcomes
• Preparation of lesson schedules
• Use of learning media
• Behavious chane as the learning objectives

Disadvantages of educational psychology :

• Limitation due to the nature of educational psychology. In educational psychology, there is no guarantee that individual may behave same but in other science subjects experiments will remain the same, if the conditions are same.

Hope this helps you.